silent 700 Silent 700 Model 745... · 2015. 6. 5. · silent700 electronicdataterminals Model 745 Portable Data Terminal Operating Instructions MANUALNO.984024-9701,REV.A ISSUED15DECEMBER

silent 700electronic data terminalsModel 745 Portable Data Terminal

Operating Instructions

MANUAL NO. 984024-9701, REV. A

ISSUED 15 DECEMBER 1975

REVISED 1 NOVEMBER 1976REISSUED 1 APRIL 1977

Texas InstrumentsINCORPORATED

Copyright 1976By

Texas Instruments incorporated

All Rights Reserved

PRINTED IN U.S.A

The information and/or drawings set forth in this document and all rights inand to inventions disclosed herein and patents which might be granted thereondisclosing or employing the materials, methods, techniques or apparatus

.bed herein are the exclusive property of Texas Instruments Incorporated.

No disclosure of the information or drawings shall be made to any other personor organization without the prior consent of Texas Instruments Incorporated.

ENGINEERING CHANGENOTICE

111

TABLE OF CONTENTS

Section Pa 9e

INTRODUCTION 1About This Manual 2General Operating Guidelines 3

I Becoming Familiar With The Model 745 5Setting Up The Terminal 5Switching The Terminal On And Off 6Setting The Printing Speed 6Setting The Terminal To Half- And Full-Duplex 7Setting The Terminal To On-Line And Local 7Loading Paper "Typing On The Keyboard 10

II Operating The Model 745 In Its Standard Configuration 13Terminal Setup '■*

Operation lo

111 Cleaning And Adjusting The Terminal 17Cleaning The Printhead >'

Cleaning The Case ' 'Adjusting The Print Contrast 18

Operating The Terminal With An External Modem 19

IV Operating The Terminal Using The Optional AuxiliaryEIA Interface Cable Kit 19

Terminal Setup 20Operation With a DAA 20Operation Without a DAA 21

Operating The Terminal With An External Device - Configuration I 22Terminal Setup 22Operation 22

Operating The Terminal With An External Device Configuration II 22Terminal Setup " 23Operation 23

Operating The Terminal With An External Device - Configuration 111 24Terminal Setup 24Operation 25

To Transmit Data To The Line At The Same Time YouType It On The Keyboard 25To Print Data On The Printer At the Same Time It IsReceived From The Line 25To Transmit Data To The Line At A Later Time Than You Type

It On The Keyboard 25

IV

TABLE OF CONTENTS (Concluded)

SectionSection

V Installation

To Print Data On The Printer At A Later Time Than 1 1. IsReceived From The Line

26To Complete Communications

Installing The Terminal With An External Modem 28Installing The Terminal With An External Device - Configuration I 28Installing The Terminal With An External Device- Configuration II 29Installing The Terminal With An External Device - Configuration 111 29

VI Learning More About The Controls And Keyboard 30

APPENDIX A

APPENDIX BAPPENDIX B

APPENDIX CAPPENDIX C

ControlsStandard Keyboard 31

Special Purpose Controls - 3133Indicators

Full ASCII Keyboard 34

ASCII Code System And Character Set A-1

Equipment Specification B-1

Definitions CT

1

INTRODUCTIONYou are about to learn howto operate the Texas instrumentsSilent 700® Model 745 Portable Data

Terminal . . . the lightest-weightportable now available. Even if you have no previous data processing

or data terminal experience, you should find the Model 745 simple to operate and easy to transport.

What is a data terminal? How does it differ from a standard typewriter?

In its broadest sense a data terminal is any device, inserted in a communicationsnetwork, which can

transmit data, or receive data, or both. Most department store cash registers are data terminals;

teletypewriters are data terminals. The Model 745 is a portable teletypewriter,further defined as a

Keyboard Send-Receive (KSR) data terminal, which has the ability to send and receive data. (By theway, data is a very general term meaning

information;

for example, numbers, alphabetic letters,

symbols, words, and sentences.)

The difference between a KSR data terminal and a standard typewriter is the ability of a data

terminal to generatecodes through the keyboard. The codes can be transmitted to, and printed by, its

own printer and/or transmitted to, and understood by, another device (data terminal, computer, data

logger,

CRT,

etc.). The KSR also understands and prints codes received from another device.

The code system used by the Model 745 is the ASCII Code System and Character

Set,

commonly

called ASCII (pronounced "as key"). The ASCII Code System consists of different combinationsof

ones and zeros (corresponding to numbers, alphabetic letters, and symbols) which arecommunicatedas digital signals (rLTLTL). Generally, a one is an on signal and a zerois an off signal. For example, ifyou look on page A-1, you will notice that a "U" is represented by a 1010101 (b, through b7 ). When

you depress the U key, the terminal generates an on off on off on off on. (Think of a light switch

being flipped on and off.)

How are these digital signals passed from one device to another? If the distance is not too great (50

feet usually is the limit), only cables are necessary and the terminal is said to be hard wired to the

other device. For example, when a data terminal is used as a computer console, it is usually hard

wiredto the computer.

For longer distances telephone lines orten are necessary, and the digital signals (ones and zeros) must

be converted to analogsignals (fVWVUI). The device used to convert digital signals (compatible with

data processing equipment) to analog signals (compatible with transmission facilities), and analog to

digital, is called a modem ot data set. A modem can be built-into, or be external to a data terminal,

computer, data logger,

CRT,

etc.; a modem is required on each end of the telephone line. (By the

2

way. if the modem is external to the terminal, the terminal is hard wired to the modem, and the

modem will be hard wired to the telephone line since they are in close proximity, but ihe data

terminal is not hard wiredto the remote device since a telephone line separates them.)

V cz re:LF.I'HONE" LINE

AnalogSignals

Still another way to transmit and receive data over telephone lines is available: that is, through theuse of a telephone handset. However, if a handset is used, the digital signals must first be converted tosound; then the sound is converted to analog signals before the data is transmittedover the telephone

line. The device used for this purpose is called an acoustic coupler. All acoustic couplers contain a

modem. An acoustic coupler also can be external or internal (built-in) to a data terminal.

V rf.LEI'HONF. I INE IL—m^B^^*''ZTZÎ^Z ! rARI|

. H^rTc COUPLER I .^C- r^°»n CABLE J~^MOTEDE^— «■»'"■ 3 »" '» ■ C X"" T »=■ * - M"Digital Signals Digital Signals [ -— --^r I

'

A"f LZ-IJi „,,.

.,.■

and

..-,.1

i- riHHMHHnwnCI v"",'il

Aridlot]1

ArvslngSignals

The Model 745 is capable of operating in several communications configurations, each of which isdescribed in this manual. However, the most common use of the Model 745 is as a portable terminal,using its built-in acoustic coupler as the means of communication.

While you are learning to operate the Model 745, you may notice another difference between it and a

standard typewriter ... the Model 745's silent printing. In

fact,

like most typewriters, most dataterminals use impact printing techniques. The quiet, nonimpact printing of the Model 745 is achievedby a miniature five by seven dot matrix j| of 35 tiny heating elements mounted on a solid-stateprinthead, which creates characters on heat-sensitive paper.

ABOUT THIS MANUAL

All operators should read the GENERAL OPERATING GUIDELINES and the f.rst three sections to

become familiar with the basic operations of the Model 745. Many of the operations described in

these sections are repeated in subsequent sections, but in less detail. If you will be operating theModel 745 with the optional Auxiliary EIA Interface Cable Kit, determine the particular

configuration you will use, then read the appropriateoperating instructions in Section IV. If you will

be responsible for installing the Model 745 using the optional Auxiliary EIA Interface Cable Kit, read

the appropriate installation instructions in Section V. Finally, if you want to know more about the

controlsand keyboard, read Section VI.

NOTEIf you don't know the meaning of a technical term, you

may find its definition in Appendix C.

3

GENERAL OPERATING GUIDELINES

1 External device denotes: a minicomputer, data logger,

CRT,

computer, plotter, or any other

device which communicates with the local Model 745 over a cable (hard wired). External

modem denotes; a modem which is hard wired to the local Model 745. Local equipment

denotes: the Model 745, or the Model 745 with an external modem and/or an external device.

2 Remote device denotes: a minicomputer, data terminal,

CRT,

computer, data logger, plotter or

any other device which communicates with the local Model 745 over telephone lines. Remote

modem: a modem which is hard wired to the remote device. Remote equipment denotes: the

remote device, remote modem,and any other associated data equipment.

3. Communication line (or line) denotes the cable or telephone line over which data is

transmitted to, and received

from,

the Model 745.

4 Depress means: momentarily push down the designated key and then release it. Press means:push down a switch until it locks. Press andhold means: push down and hold the key until some

stated action is completed.

5 Depress the PAPER ADV key to return the printhead to the left margin and advance the paper.

Use this key when you donot wish to generatea code to be transmitted to the communicationline.

6. Depress both LINE FEED and RETURN keys at the end of a typed line when you do wish to

generate the respective codes to be transmitted to the communication line.

NOTE

Some Model 745 Data Terminal keyboards are equipped

with alternate-action keys for the LOW

SPEED,

HALFDUP, and ON LINE functions instead of rocker switches.Press down the desired key once to gain the labeled mode;

press again to release the key.

I.

5

4

ACOUSTICCOUPLER

SUPPLY

DOOR

I PRINTHEAD

iI

PRINTERS

LI '

—WINDOW

\PLATEN ANDDANCING

ROLLER

(UNDER PAPER)

keyboard/CARRIER DETECTINDICATOR

* ' - I**l 11 i ACOUSTIC

r :~, "^ illillli _--"

/\ "-.-/. "»*s*_»^BM»

a

_'fms%_ii_Wf

,

POWER CORD

\ Z_ COMMUNICATION LINE

POWER

CORD \ L.

COMMUNICATION

LINECONNECTOR \

INTERFACE

CONNECTOR

IDENTIFICATION LABEL(LISTS,

MODEL, VOLTAGE,

POWER, SERIAL l\lO.|

5

SECTION IBECOMING FAMILIAR WITH THE MODEL 745

SETTING UP THE TERMINAL

1. Place the Model 745 Portable (with the Silent 700® label facingup) on a table or stand. If the terminal is to be used with any

external equipment (modem and/or device), be sure that theequipment is nearby; if not, be sure that a telephone is nearby.

2. Unlatch the outer cover by pushing down on lire top part of eachlatch until the bottom pari ol the latch unhooks from the groovein the terminal base; then swing the bottom part of the latchaway from the terminal base, while pressing down on the toppari of the latch.

3. Lift the ouier cover straight up and off.

4. If the terminal is to be operated in its standard configuration (i.e.,without any external equipment), but was originally ordered withthe optional Auxiliary EIA Interface Cable Kit, plug tlie JumperConnector (included in the Kit) into the Communications LineInterface Connector at the rear of the lerminal. If the terminalwas not originally ordered with the Kit, skip to step 6.

--OR-

5. If the terminal is to be operated with any external equipment,ensure that the terminal is installed according to the desiredconfiguration (described in Section V).

6

Remove the ac power cord from inside the outer cover. Plug

the three-socket female connectorof thecord into the rear of the

terminal and plug the three-prong male connector mto a 1 15-volt

ac wall outlet.

SWITCHING THE TERMINAL ON AND OFF

that the power cord is plugged into the terminal and wallCheckoutlet.

To switch the terminal

ON,

flip the power switch, located on thetop right rear corner of the terminal, toward the rear of theterminal.

To switch the terminal

OFF,

flip the power switch toward thefront of the terminal.

ON Symbol

Toggle

Switch

OFF Symbol

SETTING THE PRINTING SPEED

Determine whether you will be transmitting and receiving data at 10 or30 characters-per-second, then set the terminal printing speed to the

rate as follows:

Press the left side of the LOW SPEED switch (to the LOW SPEEDposition) to set the printing speed to 10 characters-per-second.

Press the right side of the LOW SPEED switch to set the printing

speed to 30 characters-per-second.

7

SETTING THE TERMINAL TO HALF-AND FULL-DUPLEX

As generally defined in the computer industry, half duplex describes

the 'mode in which a device is capable of transmitting and receiving

data but not simultaneously; full duplex describes the mode in which a

device transmit, and receives data simultaneously. Typically when a

data terminal is set to the full duplex mode, data typed on the

keyboard is transmitted, but not printed by its printer (or other output

device) Since the Mode! 745 is capable of transmitting and receiving

data simultaneously, full duplex is defined as full duplexoperationwith

no local printout of transmitted data, and half duplex is defined as half

duplex operation with local printout of any transmitted data. There-

fore when the terminal is in the half duplex mode, any data received

from the line while transmitting will be ignored and not: printed.

Determine whether or not you want local printout of transmitted data,

then set the HALF DUP key accordingly.

left side1 To set the terminal to the half-duplex mode, press the

of tho HALF DUP switch (to the HALF DUP position)

2. To set the terminal to the full-duplex mode, press tlie tight side

of Ihe HALF DUP switch.

SETTING THE TERMINAL TO ON-LINE AND LOCAL

Whether you use the Model 745 in a hard wired configuration or over a

telephone line, it must be internally connected to the communication

line so thai it can communicate with the external or remote device.

Otherwise it only communicates with itself and merely ss an electronic

typewriter. When the terminal is connected to the line, it is said lobe

on-line; if it is not, it is said to be in the local mode

1. To connect the terminal to the communication line (on-line)^press the left side of the ON LINE switch (to the ON

position).

line (local)2 To disconnect the terminal irom the communication

press the right side of the ON LINE switch.

\

i

8

LOADING PAPER

1. Switch the terminal power ON.

2. Lift the paper door.

3. If a useable amount of paper remains on the paper supply roll,grasp the used roll and lift it from the paper compartment. Teaithe paper hallway between the roll and Ihe dancing roller, thenremove the roll. If no paper remains on the paper supply core,simply lift out the empty core.

4. Ptess and hold the PAPER ADV key until any remaining paper isejected from the paper chute.

Grasp the new paper roll so that the loose end of the paper istowardyou with the end pointing up.

5.

IMPORTANT NOTEThe warranty and/or service contract onthe thermal printhead is subject tonullification if the thermalprintingpaperused in the Silent 700 Data Terminal doesnot meet Tl Specification 972603-0001.

9

Place the paper roil on the paper roll supports, checking that theroll can rotate freely.

6.

7. Giasp both corners of the loose md of the paper and gently pullup about 6 inches.

8. Feed the paper over the dancing roller and clown through thepaper chute until it appears behind the window. The paper will

not slide behind the printhead because Ihe printhead is pressedagainst the platen.

9. Press and hold the PAPER ADV key until the paper feeds behindthe printhead, then under the window.

NOTEIf the paper does not feed freely, gently pushthe paper down the paper chute and simul-taneously press and hold the PAPER ADV key.

10. Tear off the excess paper by pulling it forward and down overtne tear-off edge of the window.

1 1 . Close the paper door and switch terminal power

OFF,

then ON.

10

TYPING ON THE KEYBOARD

Briefly study the keyboard and note the similarities and differencesfrom the keyboard to which you may be accustomed. For example,

you must depress both the LINE FEED and RETURN keys on theModel 745 keyboard to accomplish the same action as a RETURN key

on a standard typewriter. The NUM switch, unavailable on standardtypewriter keyboards, permits you to use the "shadow box" numerickeypad on the Model 745 for fast entry of numbers. Finally, the CTRLkey, when pressed and held in conjunction with one of the other keys,

generates control characters which may initiate actions locally and/or

Depress the LINE FEED key to advance the printhead vertically

one line; the printhead will not return to the left hand margin.

Depress the RETURN key to return the printhead to the leftmargin.

Press and hold the PAPER ADV key to return the printhead to

the lefi margin, then continuously line feed as long as the key ispressed. Since the PAPER ADV key does not generate a code, useit when you want to perform line feed and carriage return actionslocally and not transmit their corresponding codes to the line.

Press and hold tlie SHIFT key while simultaneously depressingone of the keys marked with two or more characters, to print theupper character on the key (except the "shadowbox" numbers).

11

5.

6. Press and hold the CTRL key while simultaneously depressing

oneof the alphabetic keys or the - , . / keys to generate the ASCIIcontrol characters (see page A-1).

NOTEFor practice, depress the

G,

H, J, and M keys inconjunction with the CTRL key to see what

actions are performed. These four controlcharacters are the only ones that initiate someaction by the Model 745's printer when gencrated by the keyboard or received from theline. However, other control characters, whentransmitted to an external or remote device,may initiate some action in that device.

7. Press and hold the REPT key while momentarily

another key to repeat a character.

8. Depress the HERE IS key to transmit the contents of theanswerback memory (if this option is installed in your Model745).

NOTETo protect proprietary data and/or to prevent

entry of erroneous data, many systems aredesigned to check each data terminal attempt-

ing to establish communications to determine ifthe terminal is authorized to communicate.Onemethod of making such a check is to install ananswer-back memory, which can contain up to21 pre-defined ASCII characters into eachauthorized terminal. When a particular terminalattempts to establish communications, theremote equipment can check the contents ofthe answer-back memory to verify that theterminal is authorized to communicatewith thesystem.

Press the left side of the NUM switch to print/generate the

"shadow box" numbers. Note that the "0" (zero) is on the space

bar.

depressing

12

9. Depress the

ESC, RUBOUT,

and BREAK keys when your system

requires their corresponding codes.

NOTEIn some systems the codes generated by thesekeys have special meaning. Check their signifi-cance to your system.

13

SECTION 11OPERATING THE MODEL 745IN ITS STANDARD CONFIGURATION

This section describes operation of the Model 745 in its standardconfiguration. Using only the built-in acoustic coupler (and no externalmodem and/or external device) on the Model 745 gives you the most

freedom. All that is required for its operation is a standard telephone

and an electrical outlet.

MODH. /1!»

KLYHOAROAND

PHIMUR r_n

ACOUSTICCOUP Lift

"f.Lfc PHONEIf.

TERMINAL SETUP

1. Set the Model 745 on a table close to a standard telephoneand a1 1 5 Vac power receptacle.

2. Remove the outer cover.

3. Remove the power cord from inside the outer cover and plug

the female connector into the rear of the terminal and the maleconnector into an electrical outlet.

4. Switch the terminal power ON

5. Set the printing speed to 10 or 30 characters per-second

according to your system's requirements.

6. Set the operating mode to half- or full-duplex according to your

system's requirements.

7. Open the paper door and check that the terminal is properly

loaded with a sufficient supply of Tl Silent 700® printingpaper.

OPERATION

8. Press the right side of the ON LINE switch to place theModel 745 in the local mode (off-line).

I STANDARDj TELEPHONE

- i

14

Pick up the telephone handset and dial the appropriate number;

an audible high frequency signal (data tone) can be heard after

the call is answered.

As soon as you hear the data tone, firmly insert the telephone

handset into the acoustic coupler muffs so that the cord is to the

left side of the data terminal. The Model 745 acoustic coupler-

will, in turn, transmit a data tone to the remote modem or

acoustic coupler.

NOTEIt is very important to insert the handset into

the muffs so that the outer lip of each muffmates with the grooves in the handset, or until

the removable caps on the handset are com-pletely surrounded by the inside circumferenceof the muffs.

15

11.

keyboard, will illuminate.

NOTEIf the carrier detect lamp goes out, communi-

cation has been lost and you must return tostep 8.

12. Begin communications according to your system's procedures.

NOTEAfter prolonged operation the carbon particlesin the telephone handset may settle, causing

data errors. If this occurs, rap the handsetseveral times in the palm of your hand.

13. If required, depress the HERE IS key to transmit the contents of

the answer-back memory (if your Model 745 is equipped with

this option).

14. When you are

finished,

terminate communications according to

your system's procedures, set the terminal to the off-line mode,

remove the telephone handset from the acoustic coupler

muffs,

and.replace the handset in its cradle

Immediately press the ON LINE switch to connect the terminalto the remote device. When theconnection is complete, the smallgreen lamp (called the carrier detect indicator) located on the

17

SECTION 111CLEANING AND ADJUSTING THE TERMINAL

CLEANING THE PRINTHEAD

The printhead should be cleaned each time a new roll of thermal paper

is loaded into the terminal. Clean more often if the printed image

begins to fade because of residue accumulating on the printhead.

1. Remove all thermal paper from the paper chute (refer to page8 ). Wet with denatured alcohol

2. Using denatured alcohol, wet a 2-inch wide strip across a sheet of

good quality bond paper. Insert the sheet down the paper chute

in the same manner as described for the thermal paperon page 9.

NOTE

Denatured alcohol is available from Tl in pint

containers (Tl Part No. 230007-0000).

3. Print five lines on the bondpaper across the 2-inch strip wettedwith alcohol. Use the REPT key to accelerate the process. Thenadvance the paper to a dry area and print two more lines.

NOTEThe printhead will not print a visible image onthe bond paper.

4. Press and hold the PAPER ADV key until the bond paper isejected from the paper chute.

CLEANING THE CASE

Use a

soft,

damp cloth or sponge and any nonabrasive household-type

detergent to clean the exterior surfaces of the Model 745 case. Takecare not to spill liquids on any electrical components: short-circuitscould result.

18

ADJUSTING THE PRINT CONTRAST

You will probably never have to adjust the printing contrast since it ispreset at the factory for optimum clarity. But if the contrast has beenchanged and you want a darker or lighter image, here's how to adjust.

For darker print insert a small standard screwdriver into the holemarked CONTRAST located on the right side of the terminal;then rotate the screwdriver clockwise (toward D), while printing

characters from the keyboard, until the punted image is darkenough.

1.

NOTEIf the print blurs, you've rotated the screwdriver too far. If so, adjust it to a lighter print.

For lighter print rotate the screwdriver counterclockwise (toward

L), while printing charactersfrom the keyboard, until the printedimage is light enough.

2.

19

SECTION IVOPERATING THE TERMINAL USING THEOPTIONAL AUXILIARY EIA INTERFACE CABLE KIT

This section describes operation of the Model 745 in the variety ofconfigurations made possible using the optional Auxiliary EIA InterfaceCable Kit (Tl Part No. 983856).

Basically, there are three parts of the Model 745: keyboard, printer andacoustic coupler. In the terminal's standard configuration (Section III)

Ihe keyboard and printer are connected to the acoustic coupler. Sinceno external equipment is needed, the standard configuration permits

the most freedom of operation.

When the optional Auxiliary EIA Interface Cable Kit is ordered withthe Model 745, the keyboard and printer are disconnected from theacoustic coupler. This permits the keyboard and printer to beconnected to an external modem or other external device; and theacoustic coupler can be connected to an externa! device. When plugged

into the Communication Line Interface Connector al the real" of the

terminal, the Auxiliary EIA Interface Cable (included in the Kit)

provides Ihe necessary connections to most external equipment. Whenthe Model 745 is to be used in its standard configuration, the Jumper

Connector (also included in the Kit) must be plugged into theCommunication Line Interface to reconnect the Model 745 keyboard

und printer to the built-in acoustic coupler.

OPERATING THE TERMINAL WITH AN EXTERNALMODEM

Occasionally you may want to use an external modem rather than thebuilt-in acoustic coupler for communication with the remote equip-ment on the other end of the telephone line. If so, determine if themodem will originate or answer the data call. If the external modemwill answer the call, perform only steps 1 through 7; communicationwill be established automatically, if the terminal will originate the call,find out if you will be operating with or without a Data AccessArrangement (DAA), then perform the appropriate steps below.

MODEL 74b I

IWt EXTERNALI

MODEM

... ! PI AND ' '"""j .ij I II PRINTER "——SI .-»——"

' L— —r=rJ f—III ———1 P3I I 1 I I ■ ACOUSTIC1

ACOUSTIC

| ' ' '"■ COUPLERCOUPLER ———- ( ■ EIA INTERLACE

! I (NOT USED)

LINE

X

I

I

I

i

20

Terminal Setup

I.* , , 3 2*- \y " /cHJ \

1. If the terminal is not connected to the external modem, ensurethat it is installed as described in Section V, page 28.


3. Open the paper door and check that the terminal is properlyloaded with a sufficient supply of Tl Silent 700 printingpaper.

4. Set the printing speed (LOW SPEED switch) to 10 or 30characters-per-second according to your system's requirements.

5. Set the operating mode to half- or full-duplex (HALF DUPlexswitch) according to your system's requirements.

6. Set the terminal to the on-line mode(ON LINE switch).

7. Set all the controls on the external modem according to your

system's requirements.

Operation With a DAA

The DAA installed by the telephone company may operate in one of

two ways, depending on how the white DATA key on the telephonecradle is wired, if you hear a dial tone when you pick up the handsetfrom the cradle, proceed as follows . . .

8. Pick up the telephone handset and dial the appropriate number;an answer tone can be heard when the call is answered.

9. Lift up the white DATA key on the telephone cradle when theanswer tone begins.

10. Place tlie handset on the table and proceed to step 14 below.

Do not hang up the handset or you willterminate the connection.

OR

if you do not hear a dial tone when you pick up the handsetproceed as follows . . .

1 1 Lift up the white DA7A key on the telephonecradle and wait fora dial tone.

i

1

21

12. Dial the appropriate number; an answer tone will be heard whenthe call is answered.

13. Replace the handset on the telephonecradle.

14. When the connection is complete (the carrier detect lamp willilluminate), begin communications according to your system'sprocedures.

15. If your system requires, press the keyboard HEREtransmit the contents of the answer-back memory.

IS key to

OR-

Operation Without a DAA

Press the TALK button on the data set.16.

17. Pick up the telephonehandset and dial the appropriate number; adata tone can be heard after the call is answered.

18. Press the DATA button on the data set (modem) when

tone begins.the data

Hang up the handset.19.

20. Begin communicationsaccording to your system's procedures.

21. If your system requires, press the keyboard HERE IStransmit the contents of the answer-back memory.

key to

22. When you are

finished,

terminate communicationsaccording toyour system's procedures, pick up the handset, press the TALKbutton, then hang up the handset.

22

OPERATING THE TERMINAL WITH AN EXTERNALDEVICE - CONFIGURATION I

In some applicationsyou may want to use the Model 745 keyboard undprinter, but not the acoustic coupler because there is no need lotransmit or receive data over the telephone line. A typical example is

the use of the Model 745 as a means of input and output lo aminicomputer.

MODEL 745

Kl. YKOARDAl\ll

PRINTER

ACOUSTICCOUPLER

Terminal Setup

1. if the terminal is not connected to the external device ensurethai it is installed as described on page 28.



4. Set the printing speed (LOW SPEED switch) to 10 or 30characters-per-second according to your system's requirements.


6. Set the terminal to on-line.

7. Set all necessary controls on the external device.

Operation

8. Begin communicationsaccording to your system's procedures.

OPERATING THE TERMINAL WITH AN EXTERNALDEVICE - CONFIGURATION II

In some applications you may have an external device which has itsown keyboard and printer (or other means of output; e.g., a videoscreen), but no way to communicateover the telephone lines. In such a

23

case, you may want, to "borrow" the Model 745's acoustic coupler on atemporary basis. For example, a video terminal normally may be hardwired to a computer, but occasionally needs to be put on line to aremote device over the telephone line

KFYBOARD

PRINTER

ACOLISTICCOUPLER

Terminal Setup

1. If the terminal is not connected to the external device, ensurethat it is installed as described on page 29.


3. Set all necessary controlson the external device.

Operation

4. Press the right side of the ON LINE switch to place theModel 745 in the local mode (off line).

5. Pick up the telephonehandset and dial the appropriate number;an audible high frequency signal (data tone) can be heard afterthe call is answered.

6. As soon as you hear the data tone, place the telephone handsetinto the Model 745 acoustic coupler muffs so that the cord is tothe left side of the data terminal. The acoustic coupler will, inturn, transmit a data tone to the remote modem or acousticcoupler. (See the NOTE on page 14 to assure satisfactoryinsertion of the handset into the muffs).

7. Begin communications according to your system's procedures.

NOTEAfter prolonged operation the carbonin the telephone handset may settle,data errors. If this occurs, rap theseveral times in thepalm of your hand.

particlescausinghandset

8. When you are finished, terminate communicationsaccording toyour system's procedures, then remove the telephone handsetfrom the acoustic coupler muffs and replace the handset in itscradle.

24

OPERATING THE TERMINAL WITH AN EXTERNALDEVICE - CONFIGURATION 111

At times you may want to use the Model 745 with an external device,such as a tape cassette recorder, data logger,

CRT,

plotter, orminicomputer, using all three functions of the terminal. For example,with a cassette recorder connected to the Model 745, you can type dataon the keyboard, store it on cassette tape, then transmit the data viathe acoustic coupler to a remote computer either simultaneously or at a

later time.

Or,

data can be received from a remote computer via theacoustic coupler, stored on cassette tape, then printed either simul-taneously or at a later time. Typically, if an external device has storagecapability, when data is received from the input device (keyboard), itwill be transmitted at a later time; and when the data is received fromthe line, it will be printed at a later time. When an external device doesnot have storage capability, all operations must occur simultaneously.

j MODEL 745 | P? I ~

111 EXTERNALI "EVICF

! AND | ' ""i _;_ i L1 PRINTER " ""■l_i ' """ ' '" """" """"! = I ■;■ I ,,3 r- |I I I ■ ■ EXTERNALI

ACOUSTIC

1 . ' "'■ ■ DEVICECOUPLER j ■ P

1 -

" "" ' "

'V^>

n m

f^-?-... ITLEPEIONEX 0

/,-

-

,\ /,?**"/-.

LINE€Fo 0 „ KO ) ,-F-' - --..STANDARD J :::/- I .....--;:

'

/ --TELEPHONE T— F-

' ■&

Iiiiiiii

t.

Terminal Setup

1. If the terminal is not connected to the external device, ensurethat it is installed as described on page 29.

2. Switch the terminalpower ON.


4. Set the printing speed (LOW SPEED switch) to 10 or 30characters-per-secondaccording to your system's requirements.


6. Set all necessary controls on the external device.

25

Operation

Operation of the Model 745 differs slightly, depending on whetheryouwant data transmitted to the line via the acoustic coupler at the sametime or at a later time than you type it on the keyboard; and whetheryou want data printed via the printer at the same time or at a later timethan it is received from the line via the acoustic coupler.

To Transmit Data to the Line at the Same Time You Type it on theKeyboard:

7. Set tip the external device to receive data from the Model 745keyboard and transmit data to the line via the Model 745 acousticcoupler.

8. Set the terminal to online.

9. Complete communications as described in steps 23 through 28below.

10. Fype the data on the terminal's keyboard; the data will betransmuted io the external device, then to the line.

To Print Data on the Printer at the Same Time it is Received From theLine:

11. Set up the external device to receive data from the line via theModel 745 acoustic coupler and to transmit data to the Model745 printer.

12. Set the terminal toon-line.

13. Complete communications as described in steps 23 through 28below; the dala will be received by the external device and thenprinted by the Model 745.

To Transmit Data to the Line at a Later Time Than You Type it on theKeyboard:

14. Set up the external device to receive data from the terminal'skeyboard.

15. Set the terminal toon-line.

16. fype the data on the terminal's keyboard; the data will betransmitted to the external device and stored.

17. When you are ready to transmit the data to the remoteequipment, set up the external device to transmitdata to the linevia the terminal'sacoustic coupler.

26

18. Complete communications as described in steps 23 through 28below; the data will be tiansmittedto the line when transmissionis initiated by the external device.

To Print Data on the Printer at a Later Time than it is Received fromthe Line:

19. Set up the external device to receive data horn the line via theterminal'sacoustic coupler.

2Q. Complete communications as described in steps 23 through 28below; the data will be stored by the external device whenreceived from the line.

21. When you are ready to print the data, set up the external deviceto transmit to the terminal'sprinter.

22. Set the terminal to on-line; the data will be printed by the Model745 when transmission is initiated.

To CompleteCommunications

23. Set the external device to local.

24. Pick up the telephone handset and dial the appropriate number;an audible high frequency signal (data tone) can be heard afterthe call is answered.

25. As soon as you hear the data tone, place the telephone handsetinto the Model 745 acoustic coupler muffs so that the cord is tothe left side of the data terminal. The acoustic coupler will inturn transmit a data tone to the remote modem or acousticcoupler.

26. Immediately set the external device to ON LINE to connect it tothe remote device.

27. Begin communication according to your system's procedures.

NOTEAfter prolonged operation the carbon particlesin the telephone handset may settle, causingdata errors. If this occurs, rap the handsetseveral times in the palm of your hand.

28. When you are

finished,

terminate communicationsaccording toyour system's procedures, set the external device to local, thenremove the telephone handset from the acoustic coupler muffsand replace the handset in its cradle.

27

SECTION VINSTALLATIONWhen ihe Model 745 is ordered in its standard configuration, itsacoustic coupler is connected to ils keyboard and printer, and theterminal can only operate as described on pages 13 and 14.

If the optional Auxiliary EIA Interlace Cable Kit is ordered with thoModel 745, the terminal is factory set lor applications in which theacoustic coupler is to be used separately from the keyboard and printer.However, the terminal is still capable of operation in ils standardconfiguration. The Auxiliary Cable Kit includes:

" Auxiliary EIA Interface Cable (77 Part No. 983847)

" Jumper Connector (Tl Part No. 983846)

When ihe Auxiliary EIA Interlace Cable is installed, the Model 745 iscapable of operating in the configurations described on pages 19through 26. When the Jumper Connector is installed, the Model 745operates in its standard configuration.

The Auxiliary EIA Cable has EIA Specification RS-232-C connectors;pin assignments are listed in Table 5-1.

JUMPER

CONNECTOR

Tl PART

NO.

983846

AUXILIARY EIA

CABLE

Tl PART

NO.

983847X ,/P2 |

CANNON

DB-25P I 103 A TYPE

MODEM

I

ACCESSTO

KEY-(.

n

I (OH EQUIVALENT) { EXTERNAL DEVICE (

BOARD

& PRINTER(pi) MM-

/

iv '_ XF\

CANNON08-25S

) )

ACCE

=

SSl

°( / IXF (OH EQUIVALENT) ) « l ERNAI.

DEVICE

,^

ACOUSTIC

:->"<-.. '

COUPLER

Table 5-1. Auxiliary EIA Interface Cable Pin Assignments.

r * Has: '" ""

NOTES

1. Relative io the keyboard and printer (P2).2. Relative to the acoustic coupler internal to the terminal and on another

connector (P3).3

OTR

is on (

"

l 3V) when terminal is on-line.4. EIA on (:■" i 3V) when power is ON.b. Held to EIA ON by external equipment: required

for

data receptionCommunication LineInterface Connector

Power Connector

-

___,

? \

vcrzm ]

|cDi

Terminal

CableConnector

Termination Function[ (P2andP3l

I,',1 'I ["2 ' c S fPro.

«:l,«e Ground

11 '"' P;'

;>

rf £ Transmit [),■„;,'P1 12 P?^ 2 Receive D.„.,<Pl 10 P -4 g^< M:»v„i Kt„ m s'."p ;; p^ -< sig „.„ r,„,u„ fr

P'-2» * L> U .il To,mll. i,1r.0., l|y'.'Plci p 3-i 5„, fReceive Data'Pt "'I PT 9 a ° I

t

2 J5 Trunin D ataJ

lh] P3 7 OJS Sumal Ground'Pl -2 P3-H aZJ Ca,,,e, De,(,-rp ' 9 P'< I X ~ I p , ,-

,-.

, P" 8 5 Clear, „

Send

V>Li.' !1-L6__s_ kjiri!A'iii'iîyi: '

28

INSTALLING THE TERMINAL WITH AN EXTERNALMODEM

Coupling to the line is accomplished rhroti«|h the external modem usingthe Auxiliary EIA Interface Cattle. The Model 745 acoustic couplet isnot used.

AUXILIARYEIA CABLE 1. Set the Model 74 5 on a table close to the external modem and

remove the outer covet.ABELL j,_ 1 03 A-iMODEM J

xn 1?JLesi!J 'us!iiP ll j p

'~

TELEPHONE

n (NOT1J CONNECTED)

2. If the terminal has been operated in its standaid configuiation, iimay be necessary to unplug the Jumper Connector from theCommunication Line Interface Connector at the tear of theLINE

Model 745.

ACOUSTICCOUPLER

3. Plug EIA cable connector P1 into the Communication Line'Interface Connector.

4. Plug EIA cable connector P2 Info Ihe external modem.

5. Check that the modem is connected to the telephone line(or DAA).

6. Plug the female connector to the ac powei cord into the PowerConnector at the rear of the terminal; plug the three piong maleconnector into an ac wall outlet.

INSTALLING THE TERMINAL WITH AN EXTERNALDEVICE - CONFIGURATION !

No coupling to the telephone line is required, therefore the acousticcoupler is not used. The Auxiliary EIA Interface Cable connects theModel 745 keyboard and printer to the external device.

AUXILIARY TERMINALEIA CABLE CONNECTOR

1. Set the terminal on a table close lo the external device andremove the outer cover.(NOT,-)

CONNECTED) v

2. If the terminal has been operated in its standard configuration, ilmay be necessary to unplug the Juniper Connector from theCommunication Line Interface Conneclo: at the rear ot the

ACOUSTIC

COUPLER

Model 745.

3. Plug EIA cable connector P1 into the Communication LineInterface Connector.

4. Plug EIA cable connector P2 into the external device terminalconnector.

5. Plug the female connector of the ac power cord into the PowerConnector at the rear of the Model 745; plug the three-prongmale connector into an ac wall outlet.

29

INSTALLING THE TERMINAL WITH AN EXTERNALDEVICE - CONFIGURATION II

Coupling to the telephone line is accomplished through the Model 745built-in acoustic coupler. The Auxiliary EIA Interface Cable connectsthe acoustic coupler to the external device.

AUXILIARY

MODEM

EIA

CABLE CONNECTOR

(notCONNECTED) L—iP? P11. Set the Model 745 on a table close to the external device and a

telephone; remove the outer cover.

2. If the terminal has been operated in its standard configuration, itmay be necessary to unplug the Jumper Connector from theCommunication Line Interface Connector at the rear of theModel 745.


4. Plug EIA cable connector P3 into the external deviceconnector.

modem


INSTALLING THE TERMINAL WITH AN EXTERNALDEVICE - CONFIGURATION 111

Coupling to the telephone line is accomplished through the Model 745built-in acoustic coupler. The Auxiliary EIA Interface Cable connects

the Model 745 keyboard, printer, and acoustic coupler to theexternaldevice.

MODEMCONNECTOR

TERMINAL

CONNECTOR

1. Set the terminal on a table close to the external device andremove the outer cover.

2. If the terminal has been operated in its standardconfiguration, itmay be necessary to unplug the Jumper Connector from theCommunication Line Interface Connector at the rear of theModel 745.

TO TELEPHONE


4. Plug EIA cable connector P2 into the external device terminalconnector.

5. Plug EIA cable connector P3 into the external deviceconnector.

modem


30

SECTION VILEARNING MORE ABOUT THE CONTROLS & KEYBOARD

CONTROLSPower switch. Located al the top light reai comer of the Model745, this toggle switch either disconnects the ac power line fromall circuits in the data terminal (forward position) or connects theac power line to the terminal (reai position).

ON Symbol

To(i<ili' Swilch

OFF Symbol

b. TRANSMIT LEVEL contiol. The transmit level isfactory-calibrated for optimum performance with most U. S.telephone systems. However, because of the conditions of somehandsets and since line losses occur in some areas, it may benecessary to increase or decreasethe transmit level to compensatefor unusual conditions. Adjust the transmit level (or optimumperformance by inserting a small screwdriver into the holemarked TRANSMIT LEVEL; rotate clockwise 1o improve log-onor counterclockwiseto reduce data errors.

c. CONTRAST control. Located on the right side of the terminalthis potentiometer darkens or lightens the printed characters. Toincrease (darken) print contrast rotate the control clockwise(toward the "D") with a screwdriver; to decrease(lighten), rotatecounterclockwise (toward Ihe "L")

The following controls (keys) are located in a row on the right side ofthe keyboard:

d. PAPER ADV key. Pressing and holding this key returns theprinthead to the left: margin, and continuously feeds paper untilthe key is released. No code is generated.

c. BREAK key. Depressing this key transmits a continuous spat:e

over the communication line as long as the key is depressed (ifthe terminal is set toon-line). Generally, the BREAK key is usedin full-duplex communicationsnetworks to interrupt transmissionfrom the remote equipment.

f. LOW SPEED switch. Pressing this rocker switch to the left setsthe data transmission and reception speeds to 10 characters-per-second; pressing to the right sets the transmission and receptionspeeds to 30 characters-per-second.

31

9- HALF DUP rocker switch. Pressing this switch to the left sets theoperating mode to half-duplex; pressing to the right sets theoperating mode to full-duplex.

NOTESet to full-duplex to prohibit local printout oftransmitted data; set to half-duplex to enablelocal printout of transmitted data.

h. ON LINE rocker switch. Pressing this switch to the left connectsthe terminal to the communication line (on-line mode); pressingto Ihe right disconnects the terminal from the communicationline (local mode).

STANDARD KEYBOARD

The Model 745 standard keyboard is shown in Figure 6-1. The Model745 generates the ASCII code and character set described inAppendix A.

Special Purpose Controls

a. HERE IS key. Depressing ibis key transmits the contents of theoptional Answer Back Memory (if installed) to the communi-calions line.

b. LINE FEED key. Depressing this key advances the paper one line.The printhead does not move.

c. RETURN key. Depressing this key returns the printhead lo thelei t margin. The paper is not advanced.

NOTEBoth LINE FEED and RETURN must bedepressed to obtain the equivalentto a standardtypewriter carriage return.

d. REPT key. Pressing and holding this key while momentarilydepressing another character key repeats that character untilci titer the REPT key is released or another character key isdepressed.

c. SHIFT key. Releasing this key permits generation of thecharacters shown in Figure 6-2; pressing and holding this keypermits generation of the characters shown in Figure 6-3.

f. CTRL key. Pressing and holding this key permits generation ofthe characters shown in Figure 6-4.

g. NUM rocker switch. Pressing this switch to the left permitsgeneration ot the characters shown in Figure 6-5.

32

*

t~i r^n mr~n r% & □ < a < on1 2 3 4 I 5 6 7 8 91 0

HERE IPAPER;ADV.';|;IS

■-""'"» I "I | 1 |—

■

I S piESC! Q WE r It y v j p p0 I~ BREAK

ci @ c a \ + .rub,j k l ;1 H LOW

All Sli DIJ F IIG II H

SPEED

Aniij] o HALEDUI>zl lx^Lvl IbJ Inl Iml I,

© ONMUM E JAllllltß Lit .I CI LINE

INl'llCA'l (JII

AOOUI

191,

Figure 6-1. Model 745 Standard Keyboard Layout and Symbolization.

HERE PAPER:adv1 1 1 2 I 3l |4J lsj lei LU Lai UJ Lo

v hllo Ip FHbZesa\ Q I Lw I c IrJLtJLy break!

LOW

aJL^LdJLfJLgJLh SPEED

MALIDUPzJ Ix Icj IvI LU INJ LMJ Li

® ONI. INE

AOOOI I9 /

Figure 6-2. Codes Generated with no Mode Keys Activated (Standard Keyboard).

nnmmni nrm > HERE PAPER.ADV■.lis

9 h;dhTURN

ESC!

BREAK

i i IirubiI I IIouti:LOW

SPEED

1A > I ? HALEDUP

"

ON

LINE

AOOOll9B

NOTES: j j A blank key indicates that a NUL code is transmitted.

Figure 6-3. Codes Generatedwith theSHIFT Key Pressed and Held .Standard Keyboard).

*

*

I.RUBI

33

HERE PAPER■ADV

;IS

GS

ESC

« m'J RETURNIf DCI I ETB I ENQ I DC2 I

DC4

lEM I NAK Xl

SI

if DLE I l " I BREAK

LOW

SPEEDSOH I

DC3

I

EOT

I

ACK

I BEL BS I LF I VT I FF DEL

HALFDUP

SUB

I CAN I ETX I

SYN

I

STX

I

SO

I

CR

II

FS

II

RS

I

US

6 OMLINE

A000 1199

NOTES: [ j A blank key indicates that a NUL code is transmitted.The CTRL (Control) key overrides theSHIFTkey.

Figure 6-4. Codes Generated with the CTRL Key Pressed and Held (Standard Keyboard).

lc; a ]m HERE PAPERADV<IS

m\pi m :S return [break

pa \m m LOW

SPEED

,HALFDUP

® ONENUM i !Nf

AOOO I200

NOTES: j j A blank key indicates that a NUL code is transmitted.The NUM (Numbers) switch overrides the SHIFT and CTRL keys.

Figure 6-5. Codes Generated with the NUM Switch Set (Standard Keyboard).

Indicators

a. Carrier detect indicator. When illuminated, this green lampindicates the presence of the receive-data carrier frequency.

b. Bell indicator. An audible sound is emitted when the BEL code isreceived from the keyboard or communication line.

34

FULL ASCII KEYBOARD

! " # $ % & ( )

._

1 234567890

The optional full-ASCII keyboard is shown in Figure 6-6. Thiskeyboard features the capability to transmit/receive and print bothuppercase and lowercase alphabet characters, using the SHIFT key ason a standard typewriter. A special UPPER CASE rocker switch isprovided on the full-ASCII keyboard to permit generating/printinguppercase-only characters. All special purpose controls and indicatorson the full-ASCII keyboard function the same as on the standardkeyboard (see pages 31,32, & 33 for a description). Figures 6-7 through6-9 show the characters and codes generated by the full-ASCIIkeyboard in the

unshifted, shifted,

and control modes, respectively.

GS I i^j

IDC 1 jTrB I ENQ JDC2 jDC 4 leM NAK HT

SI

(DLL p NUL { 111QWERTY U \ O P IS. f I ] I" 1

SOH

I

UC3

JEOT | ACK BEL BS LF JVT |FF 11+ I *asp. If g h j Ik Mj IT L

SUB

i

CAN

I KTX I

SYN

I

STX

SO

CH <FS

J> RS )US

zxcvlbJ_nJ_mJ , !" 1 v

LOW

SPEED

UPPERCASE

HALFdue LIME

AI. ni

figure 6-8. Model 745 Optional Full-ASCII Keyboard Layout and Symbolization.

Il 2 L3jI4jLSIL&JL7JLBII9JLfi

■®*% iQllwll E II RllTll Yll Ull 1 P

A I S Dl l Fl LGJSitl Ul IKJLkZ X C VIIBJIN M

UPPERCASE

HALFDUP

(Carrier Detect litdicdlor)

A0001193

NOTE: If UPPER CASE is not selected, Ato Z are printed in lowercase.If UPPER CASE is

selected,

A to Z are printed in uppercase.

Figure 6-7. Codes Generated with no Mode Keys Activated(Full-ASCII Keyboard).

' f^fp pREAk:

I LINF IPAPERRETURN I

r|] 1 AOV

(i.r.tiit*. Oc:Uh-.[ !iuiit..rfti>!}

\ hv h";

® Li M ri„rr.,

n

_, IiLINF ItPAPLRreturn l mD I ADV

LOWSPEED

ONLINE

& ( )# $ Of/o I /*w IHEREIfl

ieak;

list

3EBBEE If ' II IHB_aJ |_sj |jdJ LeJ I_Q HhIIjIIk II l II II II RETUR JI^JI^..

_zj L>cJ LcJLxJ LsjlmJ Lmj l li_J LLJ nntWHBBK/KHBE^^

half

r-rn on t~r~]H9HB^HHBn^^HBIiaiHI^BHI^HHÎ^Hi dup ' ' ' line., Lai

AOOOl

194

NOTE: The SHIFTkey overrides the UPPER CASE switch

Figure 6-8. Codes Generated with the SHIFT Key Pressed and Held (Full-ASCII Keyboard)

H~l)C 1 I rTnTI pENcTj ~DcT

DC

4 EM NAK HT SI

OLE

NUL I gffflI.——- nmi

nm

iii ti-nT

|„ iini,„n,i g

J limy-run *!■'■ niMi nil T - -i—' \\m ii niMiiiiriJ Tiimn '

'

Imwmh—wiJ hiiiiMimniiiiinJ JUiMumiitJ IHIHS

(S____ll__BH_______l__________bl niUßßttttfu ffiMtfirmaMMrT nornHMHaMip UMMttttHiM WMWBttMEHHMt .nuttUMflttnßHf whmhmmmi Immmmmmp vummmwh ...^K..^^^^^^^^^^^_v

mHHHHBHiHEHHIffiiHiHHÎHHfIfIH

half

j-t""i on ,■—".—■-■,

b^HHI|H|^^H|HHbsIBMHBH^^^HSBHBR dup ii -J ; it.: l~l_j

AOOOI lO'.i

NOTES: I j A blank key indicates that a NUL code is transmitted.

The CTRL (Control) key overrides the SHIFT key and UPPER CASE switch.

Figure 6-9. Codes Generatedwith the CTRL Key Pressed and Held (Full-ASCII Keyboard).__ . . . ,

PAPER I—|pgADV I Hi

LOW |—psiSPEED L_lil

(CARRIER DETECT INDICATOR)

. —-A0001272

Figure 6-10. Optional Receive - Only Control Panel (Replaces the Keyboard).

35

A-1

APPENDIX AASCII CODE SYSTEM AND CHARACTER SET

Printable characters

Printer control characters

On standard (limited-ASCII) keyboard only: translatedto uppercase equivalents when received by the terminal

On standard (limited-ASCII) keyboard only: printedwhen received but nol generated

Codes generated and transmitted by the

terminal,

but no aclion is taken locally

ASCII CONTROL CHARACTERS(From American Standards Institute Publication X3.4--1968)

ETX end of text

form feedfile separatorgroup separator

ACKBELBS

acknowledgetell FF

FSbackspacecancelCAN

CRGSHTLF

carriage returndevice control 1device control 2device control 3

horizontal tabulationline feedDCI

DC2DC3

NAKNULRS

negative acknowledgenull

devicecontrol 4 (stop) record separatorshift in

DC4"DELOLEEM

ENQ

EOTESCETB

delete (also called RUB OUT)data link escape

SISO shift out

end of mediumenquiry

SOHSTXSUBSYNUS

start of headingstart of text

end of transmissionescape

substitutesynchronous idleunit separatorvertical tabulation

end of transmission blockVT

"not strictly a control character

AOOOUKi

81

APPENDIX BEQUIPMENT SPECIFICATIONS

1 KEYBOARD

Cod.;

Visibility At least GO previous lines ofprint, including current line andlast character printed

ASCII (American Standard Codelor Informal ion Interchange)

Character Set Carriage Return/ Automatic at column 81: noStandard Keyboard 97 codes generated

64 printable characters33 control characters

Line Feed code is transmitted

Carriage Return Time 195 milliseconds; no filler char-acters required after carnageOptional Keyboard 128 codes generated

95 printable characters33 control characters

return

Line Feed Time 33 milliseconds (one character-time)Numeric Keypad (Standard Keyboard only)

Embedded, 13-key calculatorstyle, numeric cluster 3. OPERATOR CONTROLS

SPEED 101 0/30 characters-per-second

2. PRINTERMethod

DUPlex HALF/fullNonimpact, theimal-paper printing; five by seven, 35-elementmatrix, electronically heated

Transmit Level Low to high

Light to darkContrastPaper Tl Thermographic Printing

Paper, Tl Part No. 972603(white); 8-1/2 inches x 100

feet;

last 10 feel: color-coded

PAPER ADVance 30 lines per second while keypressed and held

NUM (Standard Keyboard only) En-ables numeric keypadPlaten Friction-feed

Character SetStatus ON LINE/ Local

69 printable characters (lower-case characters are translated touppercase equivalents upon re-ception)

Standard Keyboard

UPPER CASE (Optional Keyboard only) Enables uppercase characters

Optional Keyboard 95 printable characters 4. INDICATORSCarrier Carrier detect lampCharacter Size 0.105 inches x 0.080 inches,

maximumBell 250 millisecond audible tone

Line Length: 8 inches5. DATA TRANSMISSION

Method fi10 characters per inch80 characters per line Asynchronous; serial -by -bit,

serial-by-characterLine Spacing 6 linesper inch

Code

ASCII;

11 bits per characterincluding parity, start, and twostop bits at 10 characters per-

Switch-selectable,

10 or 30characters-per- second

Printing Rate

82

second speed, 10 bits per char-acter with one stop bit at 30characters-per-second speed

Carrier DetectTurn-on delay 7 seconds, typicalTurn-off delay 200 milliseconds, typical

Mode Switch-selectable: half or fullduplex

7. PHYSICALSize Width: 15.4 inches

Depth: 16.0 inchesHeight: 4.6 inchesParity

Odd,

even, or mark parity(factory adjustable only)

Weight 13.5pounds (including paper)Buffer- Character buffering on received

data, permitting true 30 char-acters-per-secondoperation

8. POWER

REQUIREMENTS

Voltage 90 tl90 through 132 volts RMS

6. COMMUNICATIONS INTERFACEAcoustic Coupler

Frequency 47 through 63 Hz

Compatibility Bell System 103A(or equivalent) Power 75 watts maximumdata set

9. ENVIRONMENTTemperatureMode Originate Operating: 10"Cto40°C

Storage: -30° C to 70° C(notincluding paper)Modulation Frequency shift keying (FSK)

30°Cto40°CTransmit. 1270Hz - Mark (one)

1070 Hz -Space (zero)(including paper)

FrequenciesHumidity Operating: 10% to 90% (no

condensation)Receive 2225 Hz - Mark (one)2025 Hz - Space (zero)Frequencies Storage: 10% to 95% (no

condensation)Receiver -30 dßm with full duplex and

300 baud operationSensitivity 20 G for 1 1 millisecondsShock

TransmitterOutput Level

Adjustable between -20 and -5dßm 1.5 G 5 to 500 HzVibration

Auxiliary EIA

83

APPENDIX CDEFINITIONS

ASCII an eight level (7 bits + parity) code from theAmerican Standard Code for Information Interchange,

analog the representation of numerical quantities bymeans of physical variables; e.g., translation, rotation,voltage, or resistance. (Contrast with digital.)

baud a unit of data transmission speed equal to thenumber of code elements (bits) per second.

bit an abbreviationfor binary digit; the smallest unit ofinformation in a binary system of notation.

character one symbol of a set of elementary symbols,such as a letter of the alphabet; a character is made up of agroup of 7 bits (ASCII code).

code a system of symbols (bits) tor representing data(characters). The Model 745 utilizes the ASCII code.

data a general term for any type of information.

data set a device which performs modulation/demodulation and control functions to enable data trans

mission/reception over telephone lines between two datadevices.

digital the representation of numerical quantities bymeans of discrete integer numbers. It is possible to expressin digital form all information stored,

transferred,

orprocessed by dual-state condition; e.g.,

on-off,

open-closed,and true-false.

duplex describes two operations, such as transmitting andreceiving; full duplex means simultaneous transmission andreception; half duplex means transmission or reception, butnot both at the same time.

line, communications describes cables, telephone lines,etc. over which data is transmitted to, and received

from,

the terminal. Also referred to as the "line".

local see off-line.

modem acronym for data set (.nodulatot/cfc/nodulatoi )

off-line (local) describes equipment or devices which arenot connected to the communications line.

on-line describes equipment or devices which are conneeted to the communications line.

signal The event, phenomenon, or electrical quantity,that

conveys

information from one point to another.

USERS RESPONSE SHEET

, _... Model 745 Portable Data Terminal Operating InstructionsManual Title; —984024-9701

Date of This Letter:Manual Date:

User's Name:

Office/Department:Company:

Street Address:

City/State/Zip Code:

Please list any discrepancy found in this manual by page number or figure or table number in thefollowing spaces. If you have any other suggestions, please include them. Thank you.

NO POSTAGE NECESSARY IF MAILED IN USAFOLD ON TWO LINES (LOCATED ON REVERSE SIDE), STAPLE AND MAIL

Telephone:

Sales and Service Of! I exas Instruments are locatedthroughout the United States and in major countriesoverseas. Contact the Digital Systems Division,Texas Instruments Incorporated, P.O. Box 1444,Houston, Texas 77001, or call (713) 494-5115]for the location of the office

erves the right to make changes at any timetoimprove design and supply the beat product possible.

■" ■*■ " *u-^ A JR. X▼ JL

Jam**

1- .9. W.U

INCORPORATED

FOLD

Postage will be paid by I

DIGITAL SYSTEMS DIVISION

f-

ATTENTION: TECHNICAL PUBLICATIONSM/S 770

FOLD

TEXAS INSTRUMENTS INCORPORATED JJJ^jj^J^^P.O. BOX 1444

HOUSTON,

TEXAS 77001 ■■■■■■■■■■■■■■

igital Systems vision

Field ServiceTexas Instruments Digital Systems Division main-tains a responsive, nationwide service organizationdedicated to customer satisfaction. Expertlytrained personnel, modern facilities, and theresources of a large corporation are available to

provide the products of the Digital Systems Divi-sion with the same exacting attention after the saleas during manufacture. Nationwide service person-nel and computerized dispatching coordinate everyeffort to meet the needsof Tl customers.

Field Service Locations

Service locations indicated on this map are subject to change without notice.

Texas Instruments

Field Information System

Customer satisfaction is the primary goal of TexasInstruments Incorporated. To meet this goal the FieldInformation System was developed and implemented. TheField Information System is a nationwide, computerizednetwork which facilitates the entry, dispatch, and com-pletion of all customer service requests.

To initiate any service request, a customer should use theCentralized Dispatch telephone numberassigned to the areain which he is located (see map below). The customerprovides the dispatcher with: customer name, the addressof the product needing service, telephone number, thename of a contact, the model and serial number of theproduct, the problem, and a purchase order number (if it ispurchased equipment and not covered by warranty or amaintenance agreement). The dispatcher enters this infor-mation into the Field Information System. If the servicerequest is for equipment located in another geographical

area, the Field Information System automatically transfersthe request to the T! Service Office nearest the equipmentneeding service.

The dispatcher at the location nearest the equipment willassign the service request to a Customer Engineer foraction. When the Customer Engineer completes the servicerequest, all pertinent data is entered into the system and areal-time service status is maintained.

The Field Information System enables Texas Instrumentsto provide

fast,

efficient service to every customer, whethertheir operations are concentrated in one geographical areaor nationwide. If the customer is not satisfied with theservice provided by the Field Information System, thenearest District or Regional Manager, as designated on thelast page of this brochure should be notified.

Centralized Dispatch Telephone Numbersfor Requesting Service

Copyright

©1977,

Texas Instruments

NORTH OFPRINCETON

Equipment Maintenance ServiceTwo types of equipment maintenance service are providednationwide by Texas Instruments: Maintenance AgreementService (Basic, Extended, and Full) and On-Call Service. AMaintenance Agreement provides the customer withpriority maintenance over On-Call Service during periods ofpeak service needs. Maintenance Agreement Service quotescan be obtained from any Tl Sales representative.

Spare parts inventory is maintained at Branch, District, andRegional offices for both Maintenance Agreement Serviceand On-Call

Service,

with Maintenance Agreement Servicehaving parts usage priority.

Maintenance Agreement Service covers all routine mainte-nance except those customer responsibilities such as clean-ing tape transport heads, printheads and other first lineitems, as specified in the equipment manuals.

To maintain acceptable service and response time, Ex-tended and Full coverage are offered only when TexasInstruments can ensure the availability of adequate per-sonnel.

Customer care is equally important to ensure trouble freeoperation and optimum performance levels.

MAINTENANCE AGREEMENTSThe Basic Coverage for Maintenance Agreement Service isshown in each products price list. Prices for ExtendedCoverage and Full Coverage are listed below. Agreementsfor resident engineers will be quoted on request. Servicecalls resulting from failures or problems not the fault of Tl

equipment will be separately invoiced at Tl StandardService Rates. Availability of On-Call Service outside theService Agreement period will be provided on a best effortbasis. Rates are subject to change without notice.

MAINTENANCEAGREEMENT COVERAGE DESCRIPTION PRICEBasic Coverage Service on

your

equipment for 8 hours during the period from8:00 a.m. to 5:00 p.m., Monday through Friday, excludingholidays.

As listed on the Standard Price List for eachproduct.

Extended Coverage* * Service on your equipment for 16 consecutive hours during theperiod from 8:00 a.m. to midnight each day, Monday throughFriday, and during the period from 8:00 a.m. to 5:00 p.m. onSaturday, excluding holidays.

1.5 times the monthly charge for BasicCoverage.

Full Coverage" * 2.0 times the monthly charge for BasicCoverage.

Transportation(Computers,Computer Systems,and Silent 700®Data Terminals)

The transportation rate applies to all travel by automobile andcommercial surface and air carriers. This rate includes charges fortravel time in transit as well as travel expenses.

Monthly price per Zone* for computers andcomputer systems, beyond Zone* Zero (0),is 5% of the total Basic Monthly Mainte'nance price. For Silent 700 Data Terminals,a price adder of $20.00 per month ischarged for each terminal beyond 100 milesof a Tl service location.

"Zones are established as 25 mile intervals

from

the nearest Tl

Service

location. The zones are numbered ir, order beginning

from

zero (0)*

"Con

tact

your

local Tl sales represen tative

for coverage

available in your area.

ON-CALL SERVICEFor customers who prefer service on an On-Call basis (i.e.,service performed outside the hours of an agreement andservice for customers not covered by a Service Agreement,Tl Customer Engineers are available at Tl's then current

Standard Service Rates for labor, travel, material, andsubsistence as described below. Rates are subject to changewithoutnotice. On-Call Service outside localTl office hourswill be provided on a best effort basis.

ON-CALLSERVICE

COVERAGE STANDARDSERVICE RATESDESCRIPTION

Standard Shop Rate Labor rate during normal shop hours if the customer deliversequipment requiring service to a Tl service center.*

$25 per man-hour or part thereof.

Standard Field Fiate Up to 8 hours work between the normal working hours of 8:00a.m. and 5:00 p.m., local time, Monday through Friday.Work exceeding 8 hours during normal working hours, before8:00 a.m. and after 5:00 p.m., Monday through Friday and

any

time on Saturday.Work performed on Sundays or holidays (New Year's Day, GoodFriday, Memorial Day, Independence Day, Labor Day, Thanks-giving Day, Friday after Thanksgiving Day, Christmas Day, TlFloating Holiday).

$40 per man-hour or parr thereof.

Overtime Field Rate $50 per man-hour or part thereof. Emer-gency call out is subject to a 4-hourminimum charge.

Sunday and Holiday Rate $60 per man-hour or part thereof. Emer-gency call out is subject to a 4-hourminimum charge.

Living Expenses Charged at actual cost.Transportation Fees The transportation rate applies to all travel by automobile and

commercial surfaceand air carriers.Charged at 15 cents per mile each

way

andat the appropriate hourly rate. Commercialtravel may be charged at actual cost.

*TI

Service Centers

have the

facil

ities to provide in shop repair. Their locations are denoted by an asterisk (*) on the last

page of

this brochureunder Field

Sales

and

Service

Offices.

Service on

your

equipment 24 hours-per day, 7 days-per-week.

Field Sales and Service OfficesThe Field Sales and Service offices listed below should becontacted for all customer needs other than service re-quests.

Service requests should be telephoned through the Cen-tralizedDispatching numbers listed in this brochure.

This list is subject to change without notice. Difficulty inreaching any of the following offices should be reported toField Sales and Service Administration (713) 494-5115,extension 3261.

ALABAMAMUMtiAIVIA A ,

rSales

" Texas Instruments Incorporated NEW)

JERSEY

Texas Instruments Incorporated l", ,L," R°ari S,l«.t«lS«,ic.601 Bel Air Blvd

JUitelOß

i * j » rexas Instruments IncorporatedSuite 102 Winter Park, Honda 32789 1245

Westfield

AvenueMobile Alabama

WHIM;

1305)644-3535 Clatk, Now Jersey 07066(205)471-1435 ' (201)574-9800

GEORGIA

TENNESSEE

SalesTexas Instruments Incorporated2600 Nonconnah Blvd.,

Suite

140Memphis, Tennessee

3813?

(901) 392-2410

ARIZONA Sales

and

Service

NEW

YORKSales

and

Service

1 2 " Texas Instruments Incorporated

Sales

"Texas Instruments Incorporated3,3°° No,,h"ast Expressway Texas Instruments Incorporated

4820 North Black Canyon Hmhwiv 6A 1 270 Aye. of Americas

Suite

202 V

Atlanta,

Gen,

qia 30341 Suite 420

Phoenix,

Arizona 85017 (404)458-7791 Now York, New York 10020(602)249 1313 . (212)246-6165

ILLINOISCALIFORNIA

-1 4Sal<,S Texas Instruments Incorporated

Sales Texas Instruments Incorporated 121 0 Jefferson Road

TEXAS

Sales4 Texas Instruments Incorporated

P.O.

Box 5G21

M/

5917Dallas, Texas 75222(214) 238-5318

34 Texas Instruments IncorporatedP. O. Box 1444

M/S

769

Houston,

Texas 77001(713) 776-6511

Texas Instruments Incorporated ?■ T rans World Road

Rochester,

New York 146233186 J Airway Suite 328 (716)461-1800

Costa

Mesa,

California

92626 Schiller Park. Illinois 60176(714)540-7311 (312)6710300

Service

.. TexasInstruments IncorporatedTexasInstruments Incotpotateci i n ,'?rvtc". 1270 Avenue of the Americas831

S

Douglas

Street

I exas I nslruments Incorporated

Suite

420r,^?aXXX°'"a 90245 Sude JS"5 ""^ New York - N°M Y°rk

I°°2o

(213)973-2571 ouiif. j_-g I91?| idCKxa

Schiller

Park, Illinois 601 76 U 2i 246 0258Texas Instruments Incorporated ,32 e71

'

1540 Texas Instruments Incorporated140

Sansome

Street ._,„,«»,_1 44 Metro Park

SanFrancisco,California

941 04 INDIANA

Rochester,

New York 14623(415)3920229

Sales

and

Service

(716)4611800Texas Instruments Incorporated

3 "Texas Insturments Incorporated f4,6 S- <-vnhurs. Dr,„e

NORTHCAROLINA

776 Palomar Avenue

Suite

101

Sales

and

Service

P n

R„v nnr-,4 '

Indianapolis, Indiana 46241 Texas I nslruments Incorporatedk.u.Bo«jiw (317)248 8555 1 Woodlawn Green Suite 160Z'XX^. 'Cal,,ornia 94086 „,. Charlotte.North

Carolina

28210(408) 732 1840

KENTUCKY

(704) 527 0903Service

Texas Instruments Incorporated1938Norih East Loop 410,

Suite

191San Antonio, Texas 78217(512) 828 9101

Service

2 "Texas Instruments Incorporated13536 North

Central

ExpresswayP. O. Box 5012M/S 917Dallas, Texas 75222(214) 238-3881Texas Instruments IncorporatedP. O. Box 1444,

M/S

748

Houston,

Texas770011713) 776 6511

Service

Texas Instiuments Incorporated

OHIO

1 2'Texas Irtsltumcms Incorporated IX Sn«°" Lane3186.1 Airway ..one 309 re?tls

2*Texas

Instruments Incorporated8600

Commerce

Park DriveHouston. Texas 77036(713) 776-6511

3186.1 Airway'

'

Suite 809 Texas Inslrumenls IncorporatedCosta Mesa,

California

92626 FTX

£",."..

" ckv 4021 8 2879° Cha9' ln alvd-

Sulte

'20(714)540-7311 i002)456-6463

Cleveland,

Ohio 441 22.. „ (216) 464-2990Texas Instruments Incorporated

MASSACHUSETTS

7827 Convoy Court iales and Service "Texas Instruments IncorporatedSuite 41 2 ' "'"s lns'"Jments Incorporated 4140 Linden Avenue

VIRGINIASales

4Texas Instruments Incorporated1500 Wilson Blvd.ouire tl

S-

mi - '■"....■.. ........ ,..,.

a il-o

..

mo

Linoen Avenue

Son Diego,

California

921 1 1 ,„ ,' ""'",'. R°ild Dayton, Ohio 45432(714)

540/311

"ld'am. Massachusetts 021 64 (!il 3) 253-6128Suite 1111 A.M. Bldy.Arlington,Virginia 22209(703) 527-2800

(617) 890 7400Texas Instruments Incorporated

,,,

Service140 Sansome Street

MICHIGAN

Texas I140 Sansome

Street

MICHIGAN ,-,,_,.,. i r ,s „umi>nl, incorporatedSan

Francisco,California

94104 Sales and

Service

28790 Chagrin lilvd

Suite

120(408)732-1840 '' 4 Texas Instruments Incorporated Cleveland. Ohio 4412226211 Centra! Park Blvd. (210)464-1981- Texas Instruments Incorporated Sunn 215776 Palomar Avenue fXI^XXX""'"48076 Texas Instruments Incorporated

P.O.

Box 9064 1313)353-0830 41 40 Linden AvenueSunnyvale,

California

94086 MlMMccm-A Dayton, Ohio 45432<«°B> 732-1840 SrSl. (613,263-6128

Service2 " Texas Instruments Incorporated

1500Wilson Boulevard

Suile

1111 A.M. BuildingArlington, Virginia 22209(703) 525-5698

WASHINGTON

SalesTexas Instruments Incorporated700 112th

Street

Northeast

Suite

10Bollevue, Washington 98004(206) 455-1711

COLORADO X'!F,"U'F""F lnco'»orated

OKLAHOMASalesandServ.ee

'61 5 Metro

Boulevard,

Suite 107

Sales

2-4-Texas Instiumen.s Incorporated U IT!XXX'""*"' 1' T""" S '""ruments Incorporated9725 East Hampden Avenue

' 121S1

E. SkellyDrive

Suite

301

MISSOURI

Tulsa,

Oklahoma

741 28

Denvet,Colorado

80231

Sales

(918)437-7936(303) 751 1780 r„ ifcdpS nm""ra"d PENNSYLVANIACONNECTICUT KansasCit Mis ,

'

P4l 1 4

Sa

'° S

Sales

and

Service

(81 6. Sri-MOo"""" Tt'*''15 Instruments IncorporatedTexas Instruments Incorporated " - 400 Rouser Road2405 Whitney Avenue Texa, |nslrilmpnts ,„„,.„„,,,„,. Pittsbuigh,Pennsylvania 15108Hamden.

Connecticut

06518 2368 XXX lnc"rpo, "

,ed

(41 2) 771 8550(203)2810074

"

Q,

, ,St. Louis, Missouri 63141 -r(314) 569-0801 X'f

'"^tumenrs

IncorporatedFLORIDA 275

Commerce

Drive

Sales

and

Service

<;„„„„

Suite

116lexai Instrumenis Incorporated 2 -TPXas I nrtrnmpnu inmriw , Ft. Washington, Pennsylvania 194600 West

Commercial

Boulevard

Schue

T ,ncDrportlted (21 5) 628-3434m^r^nn

ROrid

" 33319 Sl L°"* Missour, 63141

o

erui„fi1305)7333300 {314)5690805

Service

Service"Texas Instruments Incorporated700 1 1 2th North East

Suite

10

Bellevue,

Washington 98004(206) 455-1711

WISCONSIN

Sales

and

Service

Texas Instruments Incorporated811 2 West BluemoundMilwaukee (Wauwatosa)

Wisconsin 53213(414) 475-1690

Ft Washington, Pennsylvania 19034(215) 628-3434

Service"Tl

Service

Centers"Texas Instrumenis Incorporated275

Comrnercfi

Di ivf

Suite

1 16Ft. Washington, Pennsylvania 19034(215) 628-2787

Regional Office2

Service

District Office3

Safes

Regional

Office

A

Sales

District Office

Texas InstrumentsINCORPORATED

DIGITAL SYSTEMS

DIVISIONP.

O. BOX

1444

HOUSTON, TEXAS

77001TI-429G-SM-4/77Printed in U.S.A.

Tl P/N 0999457-9701

Documents

silent 700 Silent 700 Model 745... · 2015. 6. 5. · silent700 electronicdataterminals Model 745 Portable Data Terminal Operating Instructions MANUALNO.984024-9701,REV.A ISSUED15DECEMBER